The article is not bad 'per se', but I wouldn't consider it as 'universal'. That's an opinion of a professional having quite specific needs. How many ppl have a studio for photographical work, have hundreds of thousands dollars in equipment, have gorgeous models for their shooting sessions? That's the kind of guy that will really take advantage of such cameras.

For all the others, a good aps-c or m4/3 camera will be more than enough, being much cheaper and with much smaller lenses.